Petty Officer 2nd Class Patrick Sandler was working on the pier Wednesday afternoon when he heard screams for help and saw a girl swimming toward him. He helped her onto the pier and called for reinforcements.
The agency sent out a boat and crew to help the other two people, a man and a boy who were holding on to the breakwall approximately 200 yards from the station pier.
The Coast Guard says all three were taken to a nearby hospital. They were reported in good condition.